questions about yes no type of ozone depletion
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What is the ozone layer?
The ozone layerozone layerThe region of the stratosphere containing the bulk of atmospheric ozone. The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere. Depletion of this layer by ozone depleting substances (ODS) will lead to higher UVB levels, which in turn will cause increased skin cancers and cataracts and potential damage to some marine organisms, plants, and plastics. The science page (http://www.epa.gov/ozone/science/index.html) offers much more detail on the science of ozone depletion. is a concentration of ozone molecules in the stratospherestratosphereThe region of the atmosphere above the troposphere. The stratosphere extends from about 10km to about 50km in altitude. Commercial airlines fly in the lower stratosphere. The stratosphere gets warmer at higher altitudes. In fact, this warming is caused by ozone absorbing ultraviolet radiation. Warm air remains in the upper stratosphere, and cool air remains lower, so there is much less vertical mixing in this region than in the troposphere.. About 90 percent of the planet's ozone is in the ozone layer. The layer of the Earth's atmosphere that surrounds us is called the tropospheretroposphereThe region of the atmosphere closest to the Earth. The troposphere extends from the surface up to about 10 km in altitude, although this height varies with latitude. Almost all weather takes place in the troposphere. Mt. Everest, the highest mountain on Earth, is only 8.8 km high. Temperatures decrease with altitude in the troposphere. As warm air rises, it cools, falling back to Earth. This process, known as convection, means there are huge air movements that mix the troposphere very efficiently.. The stratosphere, the next higher layer, extends about 6 to 31 miles (or 10 to 50 kilometers) above the Earth's surface. Learn more about the ozone layer.
Why is the ozone layer
What is ozone depletion, and how does it occur?
What is the connection between ozone depletion and climate change?
How do we know that natural sources are not responsible for ozone depletion?
What is being done to protect the ozone layer
Is there general agreement among scientists on the science of ozone depletion?
Yes, an international consensus about the causes and effects of ozone depletion has emerged. Under the auspices of the UN Environment Programme (UNEP) EXIT and the World Meteorological Organization (WMO) EXIT, the scientific community issues periodic reports on the science of ozone depletion. Over 300 scientists worldwide drafted and reviewed the most recent “state-of-the-science” analysis, WMO/UNEP Scientific Assessment of Ozone Depletion: 2014. EXIT
Will the ozone layer recover?
The ozone layer is expected to return to normal levels by about 2050. But, it is very important that the world comply with the Montreal Protocol; delays in ending production and use of ozone-depleting substances could cause additional damage to the ozone layer and prolong its recovery